تخصیص آب و نهاده‌هاي آلاینده‌ی محیط‎‎زیست برای توليد گندم در دشت سیدان- فاروق

اسماعیل فلاحی, فاطمه رستگاری پور

چکیده


مديريت كارای استفاده از منابع در تولید كشاورزي، نقشی کلیدی در فرایند توسعه‌ي پايدار ایفا ميکند. در این راستا، هدف پژوهش حاضر تعیین میزان بهینه‌ی اقتصادی مصرف آب و نهاده‌های آلاینده‌ی محیطزیست در تولید گندم در دشت سیدان- فاروق شهرستان مرودشت است. داده‌های مورد نیاز، به‌صورت مقطعی و مربوط به سال زراعی 90-1389 بوده که از تکمیل پرسش‌نامه و با استفاده از روش نمونه‌گیری خوشه‌ای دومرحله‌ای گردآوری شد. یافته‌های حاصل از این بررسی حاکی از این است که بهره‌بردارن گندم‌کار، نهاده‌ی آب و نهاده‌ی آلاینده‌ی کود اوره را بیش‌تر از حد بهینه‌ی اقتصادی استفاده کرده‌اند. دلیل اصلی استفاده‌ی بی‌رویه از آب را بایستی به شیوه‌ی آبیاری غالب منطقه منتسب دانست، ازاینرو به‌جای توسل صرف به ابزارهای قیمتی در مدیریت مصرف آب، که براساس تجربه در منطقه‌ی مورد بررسی عمدتاً ناکارا بوده است، استفاده از سیستم‌های نوین آبیاری با راندمان بالاتر توصیه می‌شود. در مورد نهاده‌ی کود اوره نیز اگرچه فرایند هدفمند کردن یارانه‌ی نهاده‌های تولید، اثرات مفیدی در راستای بهینه‌سازی مصرف این نهاده داشته، اما پیروی کشاورزان از نظام مرسوم مصرف نهاده و نهادینه شدن الگوی مصرفی نادرست هم‌چنان سبب به‌کارگیری بیش از حد این نهاده‌ی آلاینده‌ی محیطزیست شده است. بر این اساس، پیشنهاد می‌شود درادامه‌ی روند واقعی‌سازی قیمت‌های نهاده با توجه به حاشیه‌ی سود معقول برای کشاورزان، اقدامات ترویجی در قالب تدوین برنامه‌های کودی یا راهبردهای دیگر و نیز جایگزینی کودهای آلی به‌منظور کاهش مصرف نهاده‌های آلاینده‌ی محیطزیست پیگیری شود. علاوه بر این، نهاده‌های کود فسفات و سم در حد بهینه استفاده شده است.


واژگان کلیدی


مصرف بهینه‌ی اقتصادی، محیط‎زیست، نهاده‌ی تولید، کشاورزی، گندم.

تمام متن:

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